Question about 1999 Suzuki Vitara

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Starts O.K. Lacks pulling power. Will not rev to full power.

Suzuki Quad bike LT-F300F problem Engine will start and rev to about half throttle. Increasing throttle opening does not increase the revs. It lacks power to pull up a hill which it used to climb willingly in low range second, or low third gear at speed, now needs low range first or super low gearing to climb at about idle speed. Opening the throttle when under load climbing the hill the engine starts to missfire (eight stroking?). Have checked and changed the spark plug. Suspect some kind of carb jet blockage but not sure how to proceed. Don't have a service manual and haven't found a free on-line version. Any help would be appreciated. Thanks.

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Check for a clogged exhaust look at catalytic converter it could be stop up.

Posted on May 24, 2009


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